Nanocomposite Hole-Extraction Layers for Organic Solar Cells

Figure 4

The dark I-V characteristics of devices with different concentrations of MWCNTs. Device A: pristine PEDOT:PSS film; Device B: M (0.04 wt%)-PEDOT:PSS film; Device C: M (0.10 wt%)-PEDOT:PSS film; Device D: M (0.20 wt%)-PEDOT:PSS film.